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The underground point of origin of the earthquake is called the seismic focus. The point directly above the focus on the surface is called the epicenter. Earthquakes by themselves rarely kill people or wildlife – it is usually the secondary events that they trigger, such as building collapse, fires, tsunamis and volcanic eruptions, that cause ...
Wildfire burning in the Kaibab National Forest, Arizona, United States, in 2020.The Mangum Fire burned more than 70,000 acres (280 km 2) of forest.. A wildfire, forest fire, or a bushfire is an unplanned, uncontrolled and unpredictable fire in an area of combustible vegetation.
The plant species in this ecosystem are highly diverse, yet the majority of these species are obligate seeders, that is, a fire will cause germination of the seeds and the plants will begin a new life-cycle because of it. These plants may have coevolved into obligate seeders as a response to fire and nutrient-poor soils. [43]
The fires now rank as the most destructive in LA's history, with some estimates of the damage put at between $52bn-57bn (£42bn-£46bn). It's unclear how the LA fires started - but most wildfires ...
Human-caused fires are also responsible for 97% of wildfires that threaten homes. People often start wildfires through dangerous actions, including open burning, campfires, firearms and equipment use.
Hurst Fire. The Hurst Fire began on Jan. 7 and has burned nearly 800 acres in the north San Fernando Valley area, near the city of Sylmar. Cal Fire has not identified a cause of the fire and ...
Wildfires can occur due to natural or man-made elements. The four most common natural elements that can cause a wildfire are lightning, an eruption from a volcano, sparks from a rockfall, and spontaneous combustion. [12] [13] The most common man-made causes for wildfires include debris burning or other carelessness and arson.
This is an accepted version of this page This is the latest accepted revision, reviewed on 24 December 2024. Event resulting in major damage, destruction or death For other uses, see Disaster (disambiguation). Ruins from the 1906 San Francisco earthquake, one of the worst disasters in the history of the United States A disaster is an event that causes serious harm to people, buildings ...